O'BRIEN, J. J.

Oil · District 02 · Lease #8664

Operator: EMERALD OIL & GAS LC

Cum Oil

9k BBL

Cum Gas

3k MCF

casinghead

Wells

2

Production

2001-04 — 2004-05

Peak Month

2001-12

Production History

Cum Oil: 8,910 BBL Cum Gas: 2,676 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

624 BBL/mo

Di (annual)

875.7%

b-factor

1.5

EUR

13,193 BBL

R-squared

0.450

type

hyperbolic

Operator History (from monthly production reports)

2001-04 — 2011-04 EMERALD OIL & GAS LC 110 mo

Wells (2)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
202EMERALD OIL & GAS LC27,0002004-03-10
201EMERALD OIL & GAS LC37,0002003-07-21